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1
11 package org.eclipse.search.internal.ui.util;
12
13 import java.util.ArrayList  ;
14 import java.util.Collection ;
15 import java.util.Iterator ;
16 import java.util.List ;
17 import java.util.StringTokenizer ;
18
19 import org.eclipse.swt.SWT;
20 import org.eclipse.swt.events.SelectionAdapter;
21 import org.eclipse.swt.events.SelectionEvent;
22 import org.eclipse.swt.events.SelectionListener;
23 import org.eclipse.swt.layout.GridData;
24 import org.eclipse.swt.layout.GridLayout;
25 import org.eclipse.swt.widgets.Button;
26 import org.eclipse.swt.widgets.Composite;
27 import org.eclipse.swt.widgets.Control;
28 import org.eclipse.swt.widgets.Label;
29 import org.eclipse.swt.widgets.Shell;
30 import org.eclipse.swt.widgets.Text;
31
32 import org.eclipse.jface.dialogs.IDialogConstants;
33 import org.eclipse.jface.viewers.CheckboxTableViewer;
34
35 import org.eclipse.ui.IFileEditorMapping;
36 import org.eclipse.ui.PlatformUI;
37 import org.eclipse.ui.dialogs.FileEditorMappingContentProvider;
38 import org.eclipse.ui.dialogs.FileEditorMappingLabelProvider;
39 import org.eclipse.ui.dialogs.SelectionDialog;
40 import org.eclipse.ui.help.WorkbenchHelp;
41
42 import org.eclipse.search.internal.ui.ISearchHelpContextIds;
43 import org.eclipse.search.internal.ui.SearchMessages;
44
45
49 public class TypeFilteringDialog extends SelectionDialog {
50
51 private Collection fInitialSelections;
52
53 private CheckboxTableViewer fListViewer;
55
56 private final static int SIZING_SELECTION_WIDGET_HEIGHT= 250;
58 private final static int SIZING_SELECTION_WIDGET_WIDTH= 300;
59
60 private Text fUserDefinedText;
61
62 private IFileEditorMapping[] fCurrentInput;
63
67 public TypeFilteringDialog(Shell parentShell, Collection preselections) {
68 super(parentShell);
69 setTitle(SearchMessages.getString("TypesFiltering.title")); fInitialSelections= preselections;
71 setMessage(SearchMessages.getString("TypesFiltering.message")); }
73
74
78 private void addSelectionButtons(Composite composite) {
79
80 Composite buttonComposite= new Composite(composite, SWT.RIGHT);
81 GridLayout layout= new GridLayout();
82 layout.numColumns= 2;
83 buttonComposite.setLayout(layout);
84 GridData data =
85 new GridData(GridData.HORIZONTAL_ALIGN_END | GridData.GRAB_HORIZONTAL);
86 data.grabExcessHorizontalSpace= true;
87 composite.setData(data);
88
89 Button selectButton =
90 createButton(
91 buttonComposite,
92 IDialogConstants.SELECT_ALL_ID,
93 SearchMessages.getString("TypesFiltering.selectAll"), false);
95
96 SelectionListener listener= new SelectionAdapter() {
97 public void widgetSelected(SelectionEvent e) {
98 getListViewer().setAllChecked(true);
99 }
100 };
101 selectButton.addSelectionListener(listener);
102
103 Button deselectButton =
104 createButton(
105 buttonComposite,
106 IDialogConstants.DESELECT_ALL_ID,
107 SearchMessages.getString("TypesFiltering.deselectAll"), false);
109
110 listener= new SelectionAdapter() {
111 public void widgetSelected(SelectionEvent e) {
112 getListViewer().setAllChecked(false);
113
114 }
115 };
116 deselectButton.addSelectionListener(listener);
117
118 }
119
120
123 private void addUserDefinedEntries(List result) {
124
125 StringTokenizer tokenizer =
126 new StringTokenizer (fUserDefinedText.getText(), FileTypeEditor.TYPE_DELIMITER);
127
128 while (tokenizer.hasMoreTokens()) {
130 String currentExtension= tokenizer.nextToken().trim();
131 if (!currentExtension.equals("")) result.add(currentExtension);
133 }
134 }
135
136
140 private void checkInitialSelections() {
141
142 IFileEditorMapping editorMappings[] =
143 PlatformUI.getWorkbench().getEditorRegistry().getFileEditorMappings();
144 ArrayList selectedMappings= new ArrayList ();
145
146 for (int i= 0; i < editorMappings.length; i++) {
147 IFileEditorMapping mapping= editorMappings[i];
148 if (fInitialSelections.contains(mapping.getLabel())) {
149 fListViewer.setChecked(mapping, true);
150 selectedMappings.add(mapping.getLabel());
151 }
152 }
153
154 Iterator initialIterator= fInitialSelections.iterator();
156 StringBuffer entries= new StringBuffer ();
157 boolean first= true;
158 while (initialIterator.hasNext()) {
159 String nextExtension= (String )initialIterator.next();
160 if (!selectedMappings.contains(nextExtension)) {
161 if (!first) {
162 entries.append(FileTypeEditor.TYPE_DELIMITER);
163 entries.append(" "); }
165 first= false;
166 entries.append(nextExtension);
167 }
168 }
169 fUserDefinedText.setText(entries.toString());
170 }
171
172
175 protected void configureShell(Shell shell) {
176 super.configureShell(shell);
177 WorkbenchHelp.setHelp(shell, ISearchHelpContextIds.TYPE_FILTERING_DIALOG);
178 }
179
180
183 protected Control createDialogArea(Composite parent) {
184 Composite composite= (Composite)super.createDialogArea(parent);
186
187 createMessageArea(composite);
188
189 fListViewer= CheckboxTableViewer.newCheckList(composite, SWT.BORDER);
190 GridData data= new GridData(GridData.FILL_BOTH);
191 data.heightHint= SIZING_SELECTION_WIDGET_HEIGHT;
192 data.widthHint= SIZING_SELECTION_WIDGET_WIDTH;
193 fListViewer.getTable().setLayoutData(data);
194
195 fListViewer.setLabelProvider(FileEditorMappingLabelProvider.INSTANCE);
196 fListViewer.setContentProvider(FileEditorMappingContentProvider.INSTANCE);
197
198 addSelectionButtons(composite);
199
200 createUserEntryGroup(composite);
201
202 initializeViewer();
203
204 if (fInitialSelections != null && !fInitialSelections.isEmpty())
206 checkInitialSelections();
207
208 applyDialogFont(composite);
209 return composite;
210 }
211
212
216 private void createUserEntryGroup(Composite parent) {
217
218 Composite userDefinedGroup= new Composite(parent, SWT.NONE);
220 GridLayout layout= new GridLayout();
221 layout.numColumns= 2;
222 userDefinedGroup.setLayout(layout);
223 userDefinedGroup.setLayoutData(
224 new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_FILL));
225
226 new Label(userDefinedGroup, SWT.NONE).setText(
227 SearchMessages.getString("TypesFiltering.otherExtensions"));
229 fUserDefinedText= new Text(userDefinedGroup, SWT.SINGLE | SWT.BORDER);
231 GridData data =
232 new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.GRAB_HORIZONTAL);
233 fUserDefinedText.setLayoutData(data);
234 }
235
236
239 private IFileEditorMapping[] getInput() {
240
241 if (fCurrentInput == null) {
243 List wildcardEditors= new ArrayList ();
244 IFileEditorMapping[] allMappings =
245 PlatformUI.getWorkbench().getEditorRegistry().getFileEditorMappings();
246 for (int i= 0; i < allMappings.length; i++) {
247 if (allMappings[i].getName().equals("*")) wildcardEditors.add(allMappings[i]);
249 }
250 fCurrentInput= new IFileEditorMapping[wildcardEditors.size()];
251 wildcardEditors.toArray(fCurrentInput);
252 }
253
254 return fCurrentInput;
255 }
256
257
260 private void initializeViewer() {
261 fListViewer.setInput(getInput());
262 }
263
264
269 protected void okPressed() {
270
271 IFileEditorMapping[] children= getInput();
273
274 List list= new ArrayList ();
275
276 for (int i= 0; i < children.length; ++i) {
278 IFileEditorMapping element= children[i];
279 if (fListViewer.getChecked(element))
280 list.add(element.getLabel());
281 }
282
283 addUserDefinedEntries(list);
284 setResult(list);
285 super.okPressed();
286 }
287
288 protected CheckboxTableViewer getListViewer() {
289 return fListViewer;
290 }
291 }
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